Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/27953c558634
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #33694 from mikehenrty/bug-1218013-player-test-waiting

Bug 1235538 - Make Player_test.js wait for statusbar icon rather than…

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https://hg.mozilla.org/integration/gaia-central/rev/cee8bfeba2de
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1235538 - Make Player_test.js wait for statusbar icon rather than immediately checking visibility

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "e6505be305ed6467f4c58a4a8c9c0f79df3708db", 
+        "git_revision": "b3f1ab9bec84b23d2724b7ad8036bfaf2c85fb49", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "7f029afe33f5c6e4eb9cd6f580991b8ab3258c4f", 
+    "revision": "27953c5586342cb3210317eabc8087a1509236fa", 
     "repo_path": "integration/gaia-central"
 }